What problem does it solve? Verifying that a pull request actually implements what its plan promised is slow and error-prone when done manually, especially for plan-driven development workflows. This Skill automates that comparison inside GitHub Actions, producing a committed audit report and PR comments without any human in the loop. ## Core Features & Use Cases - Plan-vs-implementation review: Discovers the plan file under context/changes/<change-id>/plan.md, computes the merge-base diff, and grades seven dimensions (plan adherence, scope discipline, safety, architecture, patterns, test coverage, success criteria) with an APPROVED / NEEDS ATTENTION / REJECTED verdict. - Parallel evidence gathering: Spawns three subagents covering plan drift, safety/quality/pattern compliance, and test coverage, then runs the plan's non-test automated checks (lint, build, typecheck). - CI-native publishing: Commits a structured impl-review.md report to the PR branch with [skip ci], posts inline review comments anchored to diff lines via an MCP tool, and posts a deduplicated summary PR comment. - Use Case: A team using plan-driven development labels a PR with impl-review; the workflow reviews the diff against the plan, commits the report, and gates the merge on a REJECTED verdict unless an impl-review-override label is present. ## Quick Start Ask your AI coding assistant to run the 10x-impl-review-ci skill on the current pull request to review it against its plan and post the verdict.